摘要
微RNA (miRNAs)是一组小的内源性非编码RNA,参与多种癌症和各种细胞过程,如细胞生长、DNA甲基化、凋亡和分化。13q14.3染色体区域包含miR-15和miR-16,该区域的缺失是慢性淋巴细胞白血病(CLL)中常见的异常,提示miRNAs参与了CLL的发病机制。微RNA在CLL中被称为癌基因和肿瘤抑制因子,它也可能是疾病发生和发展的标志。在西方世界,被诊断为成人最常见的白血病——慢性淋巴细胞白血病,占所有白血病的三分之一。CLL的特征是B细胞恶性克隆存在于次级淋巴组织、外周血和骨髓中。CLL的确切病因尚不清楚,但已经发现了许多染色体异常,如13q14.3、11q和17p的缺失以及12三体染色体的缺失。在这篇综述中,我们对微RNA如何参与CLL的发病机制和疾病进展进行了展望。对CLL发病机制的潜在机制和调控机制的进一步了解,强调了对其在本病中的作用进行进一步研究的必要性。
关键词: 微RNA,发病机制,慢性淋巴细胞白血病,B细胞恶性克隆,染色体异常。
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